Abstract: This data classification device comprises an acquisition unit, a data classification unit, an output unit, and an input unit. The acquisition unit acquires data to be classified as input data. The data classification unit uses a classification model to estimate the classification of the input data. The output unit outputs display data displaying: an image divided into a plurality of groups based on a group division standard based on the confidence level when the classification model estimates the classification of the input data; and an image for changing the group division standard. The input unit acquires the data for changing the group division standard as an input result. Moreover, the output unit outputs display data in which the classified data is divided into the plurality of groups based on the group division standard indicated by the input result.

Abstract: The present invention relates to a process for recovering the exhaust heat using the working fluid of the toluene (or benzene)-water system in the vapor cycle, when the moderate heat energy of 400.degree.-750.degree. C. is converted into work.In practice, in order to obtain the maximum overall thermal efficiency .eta.m, the working fluid of the Rankine cycle in the recovery of exhaust heat of the temperature of 400.degree.-700.degree. C. is suitable to be the mixture of toluene (or benzene) and water containing 20-80 mol. % of water, while the working fluid of the reheating cycle in the recovery of exhaust heat of the temperature of 600.degree.-750.degree. C. is suitable to be the mixture of toluene (or benzene) and water containing 45-90 mol. % of water in considerations of the thermodynamic efficiency of vapor cycle, the performance of the exhaust heat boiler and other factors.

Abstract: A pair of measuring elements are installed on guide means traveling between facing rolls of a continuous casting machine, the outer end faces of said measuring elements are each formed into a circular are whose diameter is the preset value for a gap between the facing rolls. Upon entering between the facing rolls, the measuring elements are brought into contact with the rolls due to a biasing force rendered thereto, whereby the displacements of the measuring elements are measured by a transducer, thereby enabling to measure the gap between the facing rolls. In particular, since the outer end faces of the measuring elements are each formed into a circular are, the necessary gap between the facing rolls can be accurately detected.